Amalgamating and annealing oven for wire-glass.



N0.,844,705. PATENTED FEB. 19 1907.

I J. I. ARBOGAST.

AMALGAMATING AND ANNEALING OVENFOR WIRE GLASS. APPLICATION FILED APR.Z6. 1906.

2 SHEETS-SHEET 1.

PATENTED FEB. 19, 1907. Jul. ARBOGAST. AMALGAMATING AND ANNEALING OVEN FOR WIRE GLASS.

APPLICATION FILED APE.26.1906.

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JOHN I. ARBOGAST, OF PITTSBURG,

PENNSYLVANIA, ASSIGNOR ,OF ONE- HALF TO LEM S. BROCK, OF BEAVER, PENNSYLVANIA, AND SEVEN AND ONE-HALF ONE-HUNDREDTHS TO FRANK C. PARK AND SEVEN AND ONE-HALF ONE-IIUNDREDTIIS TO HENRY L. COLLINS, OF PITTS- BURG, PENNSYLVANIA.

AMALGANIATING AND ANNEALING, OVEN FOR WIRE-GLASS.

To aZZ whom it may concern:

Be it known that I, JoHN'I. ARBoGAsT, a

citizen of the United States of America, re-

siding at Pittsburg, in the county of Alle- 5 gheny and State of Pennsylvania, have invented certain new and useful Improvements 1 in Anialgamating and Annealing Ovens for Wire-Glass, of which the following is a speciiication, reference being had therein to the o accompanying drawings.

This invention relates to annealing-ovens adapted for the manufacture of what is known commercially as Wire-glass and its primary object is to provide an oven in .I 5 which a composite structure comprising two layers of ordinary window-glass and an interposed layer of wire netting or mesh may be amalgamated and annealed, the construction of the oven being such that the com- 20 bined layers of glass and wire mesh may be first subjected to a gradually-increasing heat, then to a degree of heat sui'licient to thoroughly amalgamate and anneal the layers,

, and finally to a gradually-decreasing heat.

: A further object of the invention 1s to provide the oven with suitable openings on oppositesides thereof for the insertion of -flattening tools or rollers for the manipulation of the upper layer of glass simultaneously with its 0 passage through the central portion or .working chamber of the oven.

'Ihe construction of the improved oven will be fully described hereinafter inconnection With the accompanying drawings, which 3 5 form a part of this specification, and. its novel features will be set forth in the appended claims.

In the drawings, Figure 1 is a view, partly in side elevation and partly in longitudinal 40 section, of an oven embodying the invention.

Fig. 2 is a view in perspective of one of a series of pans employed in connection with the oven. Fig. 3 is a perspective view showing two sections or layers of glass with an inter- 4 5 posed layer of wire mesh as they appear previous to treatment within the oven. Fig. at is a perspective view of the completed product on a smaller scale than that shown in Fig. 3.

Fig. 5 is a transverse vertical section of the 5o oven, and Fig. 6 is a transverse horizontal 860M011 on the line it a; of Fig. 5.

Thereference-numerals 1 and 2 designate Specification of Letters Patent.

Patented Feb. 19, 1907.

1906. SeflalNo.-313,742.

the opposite side walls of the furnace, and 3 the roof thereof. The space between the side walls 1 and. 2 has a filling 4 of earth, the upper .surface 5 of which constitutes the furl nace-floor.

While of course the dimensions of the oven structure may be varied, I have found thai an oven approximately one hundred and ten feet in length is desirable, and the central portion of this structure, approximately twenty feet in length, I utilize as the working or heating chamber of the oven. A series of vertically-disposed flues 6 are provided on opposite .sides of the oven, said ilueshaving suitable connection with gas-supply pipes 7, located on opposite sides of the oven, as clearly shown in l igs. 5 and 6. At' suitable intervals between the upper ends of the flues 6 I provide openings 8 to permit of the insertion into the working chamber of the oven of openings on opposite sides of the working chamber are arranged in staggered relation or out of vertical ahnement, and each of said openings is provid.d with a suitable door or closure.

To the inner surface of-each of the side walls 1 and 2 is secured an angle-plate 9, extending longitudinally throughout the length ofthe oven and oppositely arranged, as shown in Fig. 5, to serve as a support and trackway for a series of rectangular pans 10, adapted, to contain the layers of glass and wire mesh. These pans are all similar in construction, and each is provided at one side and at its opposite side with a pair of project ing lugs 12, each of said lugs having an upwardly-extending pin 13, adapted to engage the perforated ears of the next adjacent pan. Arranged above the ovenand at one side thereof is atrackway'l l, or what is technically known in the art as a telegraph, from which is suspended a traveling fork or grapple 15, adapted to engage the pansaftc'r the latter are emptied and return them to the front end of the oven.

Within each of the pans 1O issupported a flattening-stone 16, saidstonesbeing of a size to snugly fit within the pans, and upon each i of said stones is loosely supported arectangu-' lar frame 17, adapted to inclose the layers of with a pair of projecting 1')erl"orated cars 11 glass and WiIemesh and maintain them in their proper relative positions. v

Below the angle-irons 9 I provide, at suitable intervals apart, a number of roller shafts 18, said shafts being supported in suitable bearings inthe side walls of the oven and carrying a plurality of rollers 19, over which the pans avel. At the rear end of the oven I provide a device for moving the chain of con- IO nected pans through the oven, the device here shown comprising a shaft 20, having a crankhandle 21 at one end thereof, a suitable chain 22 being wound upon the shaft 20 and adapted to engage the pins 13 of the outermost 15 pan.

The present invention is distinguished from the prior art in that I employ layers, sheets, or sections of ordinary blown window-. glass in connection with an interposed layer of wire mesh instead of layers of molten glass having an interposed layer of wire mesh, and in carrying out the invention I provide a lower layer of ordinary blown glass of a size corresponding to the pan 10 and rectangular frame 17, then place a layer of wire mesh of corresponding size upon the glass, and then apply a second layer of glass to the upper side of the wire mesh. These several layers are fitted within the rectangular frame 17, which latter rests upon the flattening stone 16, and after the desired number of pans have been thus loaded and connected by means of the perforated lugs 11 and pins 13 they are passed into the front end of the oven. During the passage of the series of pans through the front portion of the oven the layers of, glass are gradually heated to prepare them for the more intense heat to which they will be subjected within the ceno tral portion or working chamber of the oven,

and as each pan passes through the working- .chamber the heat from'the several flues 6 melts the glass to the proper consistency to insure a proper iamalgamavicnf thereof with the interposed layer of wire mesh. As the several pans pass through they heating or workin chamber of. the oven the upper layer of glass is rolled and flattened by suitable tools inserted through the openings 8, 5c and this manipulation of the surface of the glass renders subsequent grinding and polishing unnecessary. After each pan passes out of, the heating-chamber it enters the rear portion of the oven and is thus subjected to a gradually decreasing heat until it emerges om the rear end of the oven in a cooled condition, so that it may be removed from the pan and the latter returned to the front of the oven to be refilled.

In the manufacture of wire-glass as heretoseg'roe fore practiced the layers of molten glass, with the interposed layer of wire mesh, after cooling are subjected to-an expensive grindcal lines, and an extendgd imperforate sec.

tion adjoining each end of the heating-chamher and forming extensions thereof.

2. An amalgamating and annealing oven for wire-glass comprising parallel sides and a roof, in combination with a series of parallelshafts having bearing in the side walls of the oven and carrying rollers, the central portion of the side walls being'provided with oppositely-disposed vertical flues communicating with the fuelsupply.

3. An amalgamating and annealing oven for wire-glass, the central portion of which is -provided with oppositely-disposed vertical fiues in its side walls,--and openings for'the' insertion of tools between the upper ends of the fines. 4. An amalgamating and annealing oven for wire-glass, comprising parallel side walls and a roof connecting said walls, the central portion of the side walls bein with oppositely-disposed=vertica fines and openings for theinsertion of flattening-tools, the openings at one side of theoven'being out of horizontal alinement with those at the opposite sides thereof;

5. The combination with an amalgamatprising a central eating-chamber, and ver.

tically-disposed lines and tool-openings armg and annealingoven for wire-glass, comprovided ranged at opposite sides of the oven, o-ftrack- I ways secured to the inner sides'of the side walls,.a series of'detachablyconnected pans adapted to travel along said guidewa-ys,

means for moving said pans, and a series of parallel shafts supported below the pans carrymgrollers upon which the pans rest.

In testimony whereof I affix my signature I in the presence of two witnesses. v

. JOHN 1-. ARBOGASI". W'itnesses: j

H. C. 'EVERT, E. E. POTTER. 

